Perforating device for music-rolls.



PATENTED MAY 31, 1904` H. P. BALL.

PBRFORATING DEVICE FOR MUSIC ROLLS.

APPLIGATION FILED APB. 1o. 1903.

No MODEL.

WITNESSES:

l m j 1]/ HENRY PRICE No.7e1,131.

\ @UNITED I, STATES l Patented May 31, 1904.

PATENT OFFICE.

f' PERFORATING. DEVICE Fon muslo-ROLLS.

SPECIFICATION forming part of Letters Patent No. 761,131, dated May 31, 1904.

Vlippiimion filed April 1o, 1902. serrano. 102,227. N0 modelo To all whom' it may concern: Be it known that I, HENRY PRICE BALL, a

, citizen of the United States, residing at New York city, county and State of New York, have invented a Perforating Device for Music- Rolls, of which the following is a specification. r. My invention relatesto a perforating device adapted Yto be used in connection with a piano or other similar musical instrument composition originallyv played will be reproduced. p

The object of my invention is to simplify the production and decrease the cost of musicrolls. I l v The accompanying drawings will serve to I illustrate my invention.

Figure 1 is a section taken on the line XX of Fig. 2. Fig. 2 is a section, broken at the center, taken on` the lineYY of Fig. 1`. Fig. 3 is a detached plan view showing the rela-- v tion of the levers which operate the punches.

Fig. 4 is a detached elevation showing a modification of the means employed to operate the punches. FigL is a plan view of a portion of the perforated music-roll produced by the machine. l

In my former applications, Serial No.V 94, 643, filed February 18, 1902, and Serial N o. 97,353, filed March 8,1902, I have generally described two machines for perforating music rolls adapted, by reason of their construction, -to introduce a time limitl between the striking of the key of the musical instrument by the performer and the subsequent recording of such vmovement by the perforating device and,- further, to be operated ata speed corresponding to the tempo of the composition played. V

rIhe device described in the present application differs from said former devices in that, first, there is practically no time limit introduced between the striking of the key of the musical instrument and the operation of the perforating device; second, the machine is designed to and must be run at ahigh speed. In the device described in the present application the music-roll produced, owing to the omission of the device by which the time limit is introduced, will not be as perfect as is produced by the machinedescribed in my said former applications, but will be sufiiciently correct for the production of musicrolls perforated for ordinary compositions.

The object of my invention as described in my present application is to produce a machine at low cost and which will do good work. In the drawings, 5 representsthe side frames of the machine. Mounted in said frame in the same horizontal plane are two shafts 6 7. Secured to or formed integrally with these shafts is a toothed wheel 8, over which are the eccentrics 9. Depending from each eccentric is an arm 10, to which is pivotally connected a lever11, having its fulcrum at 12. Carried in the inner end of each lever-11 is a punch 13, adapted to reciprocate through the die-seat 14. Moving over the die-seat in the direction indicated by theV arrow is the strip of paper 15 to be perforated to form a musicroll. The arrangementfor moving the paper is the same as shownv in my application, Serial No.-97,353. Thev paper is introduced into the machine, wound upon the roller 16, from which it passes over the roller 17 to the spring-pressed roller 18, and-thence is wound upon the roller 19 through the `action of the roller 20, which receives its motion through the beveled wheels 21 22, shaft 23, Worm on I shaft 23, (not shown,) and worm-wheel 24 on roller 20. Pivotepd to the eccentrics 9 are the spring-pressed latches 25. These latches are provided with a hook at one end adapted to engage with the tooth-wheel 8. Situated over the tail of the latches are the bell-cranks 26, and connected to the short arm of each bellcrank is a cord 27.

28 represents a spring which normally forces the long arms of the bell-cranks against the buffer-rods 29.

30 indicates an eccentric mounted on shaft 31 and connected to a lever 32, pivoted at 33,

and carrying on its outer end a punch 34 similar to the punches 13, by means of which the rack-holes (indicated at R, Fig. 5) are produced.

Motion is communicated to the machine by means of a motor, (indicated at M, Fig. 2.) On the shaft ofl thev motor is a pulley 36,which transmits motion through belt 37 to pulley 38 on shaft 31. Mounted on shaft 31 is a gear 39, which meshes with gear 40 on shaft 7. Located upon the, shaft 7 is a gear 41 in mesh with gear 42 on shaft 6.

It will be seen that by reason of the construction described the machine can be made shorter and more compact than isthe case with a machine constructed as described in my two former applications and that the shafts 6 and 7 will be run at the same speed.

Instead of employing they construction shown in Fig. 1 for operating the punches I may use the modification shown in Fig. 4. In Athis case instead of using a series of ecce-ntriesv I arrange a series of cams 43 on the shafts 6 7 and secure a latch 25 to each cam. Situated under the earns and over the die-seat 14 I locate a plate 44 and situated in perforations 45 in such plate a series of punches 46, which are normally held up by a resilient device, suoli as spring 47 i The operation of my device is as follows: Motion being imparted to the machine under the action of the motor M, the paper 15 is moved continuously in the direction of the arrow acrossfthel die-seat, the speed of the paperbeing regulated by the speed of the shaft 7. When a key of the musical instrument to which the cords 27 are connected is depressed, a bell-crank 26 will have its short arm drawn upward and its long arm inward, therebyreleasing the latch 25, which will engage, through its hook end, with a toothed wheel 8 on the shaft 6 or shaft 7, as the case may be. i This in the construction shown in Fig.' 1 vwillr cause one eccentri'c9 to reciprocate through the intervening parts a punch 13, or in the construction shownin Fig.y 4 the rotation of acam 43 will depress a punch 46, which will riseunder the action of a spring 47. The reciprocation of the punch will perforate a hole through the moving paper l15. If the If, on vthe other hand, the key is depressed and at once released, the punch will perforate the paper with one or two holes, depending upon the speed at which the machine is run, as indicated at T, Fig. 5. Under ordinary conditions and at the speed at which such a machine can properly run two coalescing holes will be produced. The series of holes shown at S produce a 'sustained note, the two coalesced holes shown at T a single note.

In order to 'overcome the objection due to producing two coalesced holes, I decrease the size of the punch used `with this form of machine, as by such decrease one element of error is correspondingly decreased, and by that I mean the size of the hole for a single note will more nearly approximate the vrequired size than would be the case where a large punch was used.

I have stated that this machine did not introduce a time limit. The machine, in fact, does introduce a slight time limit, which will be the time intervening between the time when the key of the musical instrument is depressed and the time when the latch engages with the hook on the eccentric andmoves one-half a revolution; but owing to the fact that the machine is designed to be run at a high speed this time limit is negligible.

Having thus described my invention, I claim- 1. In a pcrforating-machine, the combination of a pair of driven shafts, two seriesof punches arranged in a single line and each adapted to be driven by its respective shaft but normally disengaged therefrom, and means under the control of the performer for throwing the punches in and out of connection with the driven shafts.

2. In a perforating-rnachine, the combination of a driven shaft, a series of eccentrics on said shaft, a series of horizontally-pivoted levers connected to said eccentrics, a series of punches connected to said levers, andl means for throwing said eccentrics into and out of connection with the driven shaft.

3. In a perforating device, a single row of punches actuated by eccentrics arranged in two rows alternately connected to the punches.

In testimony whereof I affix my signature in the presence of two witnesses.

HENRY PRICE BALL.

TOO 

